Fastener



' Feb. 1932. A. w. KIMBELL FAS TENEB Filed Jan. 27, 1928 Patented Feb. 23, 1932 ABTEUR W. mmm., OF CHICAGO, CORPORATION, OF CHICAGO,

ILLINOIS, ASSIGNOB T CINCH KAN'UFAWG* ILI-INOIS, A CORPORATION O1' ILLINOIS FABTENEB Application med January 27, 1928. Serial Ko. 249,888.

My invention has to do with fiush type fastener elements and is particularly directed to securing fastener elements to thin metal parts such as vehicle bodies, windshield posts and like structures.

In the drawings accompanying and forming part of this specification, F1 ure 1 is a plan section of a windshield post or an automobile showing a stud member (in elevation) secured to the post; Fig. 2 is a section taken on the line 2-2 of Fig. 1, showing the at taching means and closure plate formation before being upset to secure the stud to the V post; F ig. 3 is a section taken on the same 15 line as 2-2 but showing the formation of the parts when the stud is completely attached to the post; Fig. 4 is a front view of the stud; Fig. 5 is a side view of the stud; F ig. 6 is a rear view of the stud; and Fig. 7 is a section through the stud taken on the line 7--7 of Fig. 6.

`While the drawin show the manner of attaching a stud mem er to a windshield post, I wish igunderstood that other types of fastening e ements may be attached in a like manner to an suitable supporting structure.

The stud .igs, 2, 4, 5 and 6), as an article of manufacture and before it is attached to a structure, comprises a cup-shaped portion 8 having a substantially cylindrical side wall 9 and a lip flange 10. The bottom of the cup is upset or pressed inwardly to form a hump 11 which extends toward the mouth of the cup (Fig. 2 The side wall 9 of the cup is slit longitu inally as at 12, and the slits terminate short of the periphery of the lip of the cup (Fig. 7) at one end, while they extend part way into the hump 11 to leave a continuous rounded portion 13 at the end of the hump.

In the form of the invention shown,'the lip fiange is embraced by an inwardly turned fiange 14 of the base 15 of the stud. The stud has a tapering side wall extending away from the base to provide a stud head 16 and tion passing into the neck 17 for receiving a cooperating socket. The central portion of the head 16 is pressed inwardly and the bottom cut out to provide a hole or opening 18, as shown in Fig. 2.

A closure plate is located within the stud lo unit in fixed relation and has a flange 19 held tightly between the lip flan e 10 and base 15. The central portion of the xed closure plate is pressed up to provide a distortable hump 20 which more or less closely conforms to the hump 11. Both humps face toward the open ing 18 (Fig. 2) in the head of the stud.

napplying the stud unit to the metal support or post 21 (Fig. 1) the latter is bored at 22 to provide a hole of a diameter to fit the side wall 9 of the cup and the latter is thrust int-o the hole* 22 until the fiange 14 of the base 15 (Figs. 2 and 3) rests against the face of the post 21. In order to expand' the side wall 9 of the cup, it ismerely necessary to insert a suitable tool through the hole 18 in the stud head and force the hump 20 of the closure plate rearwardly withsuflificient force to press both humps 20 and 11 axially of the unit. Thus, the humps are distorted to the positions shown in Figs. 1 and 3. The hump 11 distorts the slitted side wall and bottom portions of the cup in an obvious manner, thereby preventing accidental displacement of the fastener unit due to the enlarged I condition of the cup.

The closure plate performs a useful function inasmuch as it is not punctured when upset and therefore closes the cup against passage of water, dust or dirt as clearly illusso trated by Fig. 7.

I claim:

1. A fastener installation including a supporting part having a hole therein, a stud member having a cup-shaped attaching porhole in the support and having slits therein dividing said cup-shaped portion into a number of expansible portions,

a hum presented at the bottom of said cupshaped portion, and said hump being adapt- 00 ed to be distorted to distort said expansible portions, and a fixed imperforate closure plate provided within the closure plate to close the stud member' against the assage of dust, dirt and water through the slits, said cup-shaped portion having a hump adapted to be upset to upset the bump provided at the bottom of the cup.

2. A stud member having a head, a neck and a base and provided with a hole in the head, an attaching portion secured to the base and extending therefrom' in the form of a tubular portion having a bottom, the tubular portion and bottom being slit to provide a number 'of expansible portions, means forming part of the attaching portion for expanding said portions and a closure plate also secured to the base of the stud and having a portion for cooperation with said means to permit attachment of the stud member to a sup crt.

3. stud member having a head, a neck and a base and provided with a hole in the head, an attaching portion secured to the base and extending therefrom in the form s aperture in an article of work and expanded of a tubular portion having a bottom, the

tubular portion andbottom being slitto pro-' vide a number of expansible portions, a bump extending from the bottom of said attaching portion toward the hole in the stud head, and a fixed closure element secured within said stud member and having a hump portion extending toward the hole in the head whereby when a tool is inserted through the hole the two hump portions may be upset and the closure plate will prevent passage of dust, dirt and water through the stud member.

4:. A stud member having a cup slotted to permit lateral expansion for securing the stud to a support, a hump formed at the bottom of said cup and adapted to be moved axially of the cup to expand the side wall of the cup, and a fixed imperforate closure element within the stud for preventing the pas- Sage of dust, dirt and water through the slotted cup portion.

5. A snap fastener member having a fastener receiving portion at one end, a split Mexpansible cup-shaped attaching portion at the other end, expanding means within the cup-shaped attaching portion for expanding said attaching portion to secure the snap fastener member to a support and meahs within the fastener member for closing the split cup-shaped attaching portion against passage of water, dust or dirt therethrough.

6. A snap fastener unit having a fastenerengaging portion at one end and an expansible portion at the other end, expanding means provided as a part of the snap fastener unit and adapted to expand the expansible portion to secure the snap fastener unit to a support and means having a hump which is adapted when fiattened to act upon said expending means, said means being formed to close said fastener unit against the passage of dust, dirt or water therethrough.

7. A snap fastener unit having a fastenerengaging portion at one end and a split ex` pansible portion at the other end, expanding means provided as a part of the snap fastener unit and adapted to expand the s lit expansible portion to secure the snap & istener unit to a support and means having a hump which is ada ted when flattened to act upon said expan ing means, said means being formed to close said fast/mer unit against the passage of dust, dirt or water therethrough.

8. A fastener member having a portion for cooperation with another fastenermember, and a cup shaped attaching portion for securing the fastenermember to a support, said cup shaped attaching portion being slit to provide a number of readily distortable portions and a fixed imperforateclosure plate within the fastener member being formed to close the slits to prevent passage of dust, dirt and water through the fastener.

9. A fastener stud adapted to be set into an therein, said stud comprising-a tubular socket engagin portion .forming a head and a neck,

a cup s aped shank portion, a shouldered portion joining said tubular socket engaging portion and cup shaped shank. portion, said shank portion having an inwardly bulged bottom formed prior to attachment to a support, the stud being open above said bottom, to permit the introduction of a fastener member to act upon the inner surface of said bottom., thereby forcing the bulge outwardly to expand the wall of said shank portion against the wall of the aperture in the article of work. r

10. A fastener stud adapted to be set into an aperture in an article of work and expanded thcrein, said stud comprising a tubular socket engaging portion forming a head and a neck and a cup shaped shank portion separate from said socket engaging portion, one of said portions forming an outwardly turned fiange over which the other portion crimped, to securethe portions 'together, said shan portion having *an inwardly bulged bottom prior to attachment to a support, the stud bein open above said bottom, to permit the intro uction of a fastener member to act upon the inner surface of said bottom', thereby forcing the bulge outwardly to expand the wall of said shank portion against the wall of inwardly bulged bottom formed rior to atbottom of the shank portion and a fixed clotachment to a support, the stud ein open sure plate located within the fastener memabove said bottom to permit the intro uction ber and having a bump portion cooper'ating of a fastener member to act upon the inner with the inwardly bulged bottom of the a surface of said bottom, thereby forcing the shank wherebyatool may be inserted through 7 bulge outwardly to expand the wall of said the opening in the fastener member to force shank portion against the wall of the aperthe hump portion of the fixed closure element ture in the article of work. and the bul 'ed bottom of the shank outward- 12. A fastener element com rising a clinchly to expand the wall of the shank and secure ing member, spaced inner an outer walls on the fastener member to the rigid structure. 7 "T said-clinchin member, a closed bottom on In testimony whereof, I have signed my the inner wal ,said walls havin spaced Slots name to this specification. b therethrough forzforming yiel able sections `ARTHUR W. KIMBELLQ therebetween, an engaging member opposed s i Z v to said clinching member and provided with spaced inner and outer .walls, and a shoulder forming part of both of said members and a projectmg outwardly therefrom, said shoulder being of greater outermost diameter than I g@ that of any other part of said element.

` 13.` A snap fastener stud member in the form of. a tubular member having a flange between the ends thereof, a head and neck e portion located at one side of said flange, means providing a normally 'open passage r through the outer end of the head to the interior of the stud member, a laterally ex pansible attachin portion located at the other side of the ange' and ,a movable plug eated within the stud member and operable 5. I an instrument passed through the passage m the head and engaged directly therewith to expand said attaching element for secur- I .ir-sg the stud member to a. support. l l. A fastener stud ada ted to be set into p aperture in an article ofwork and having portion adapted to be expanded therein, said stud comprising a. socket-engaging por tion forming ahead and a neck for eooperae tive engagement with a fastener socket,

a shank portion having a bottom, an annular shoulder between the shank portion and the socket-engaging portion, a bump formed in the bottom of the shank pcr- 4; tion and normally located within the shank v no portion, and means providing an openingin the head of the socket-engaging 'portion, thereby to permit the introduction of a suitv able tool whereby the bump may be flattened, V m thereby laterally to expand the wall of said shank portion to secure said fastener stud to the article of work. 15. Asnap fastenerinstallationeomprising, in combination, a ri id structure having' an aperture therethroug a snap fastener mem- I ber having a shoulder engaging the front face of said structure adjacent to the aperture therethroug a cup-shaped shank portion extending through said aperture and being expanded laterally throughout its length beginning immediately beyond the inner face of said structure, said shank portion having an inwardly bulged bottom formed prior to attachment to the rigid structure, an opening V in said fastener opposite the inwardly bulged o (0 V6 r) h CERTIFICATE or CORRECTION'.

Patent No. 1,846,736. Granted February 23, 1932, to

ARTHUR W. KIMBELL.

`It is hereby certified that error appears in the printed specificat on oi the above numbered patent requiring correction as follows: Page 2, line 3, claim 1,- strike out the words"'closure plate" and insert cupshaped portion, and line 6, same claim, for "cnp-shaped portion" read closure plate; and that the said letters `Patent should be read with these corrections therein that the same may coniorm to the record of the case in the Patent Office.

Signed and Sealed this 22nd day of March, A. D. 1932.

M. I. Moore (Seah) Acting Commissioner of Patents. 

